3f5c947f44
us up to version 2.17.50.20070703, at the last GPLv2 commit. Amongst others, this added upstream support for some FreeBSD-specific things that we previously had to manually hack in, such as the OSABI label support, and so on. There are also quite a number of new files, some for cpu's (e.g. SPU) that we may or may not be interested in, but those can be cleaned up later on, if needed.
101 lines
3.6 KiB
C
101 lines
3.6 KiB
C
/*
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* Copyright (c) 1983, 1993, 1998
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "gprof.h"
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#include "search_list.h"
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#include "source.h"
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#include "symtab.h"
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#include "cg_arcs.h"
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#include "corefile.h"
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#include "hist.h"
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static Sym indirect_child;
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void mips_find_call (Sym *, bfd_vma, bfd_vma);
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void
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mips_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
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{
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bfd_vma pc, dest_pc;
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unsigned int op;
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int offset;
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Sym *child;
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static bfd_boolean inited = FALSE;
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if (!inited)
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{
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inited = TRUE;
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sym_init (&indirect_child);
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indirect_child.name = _("<indirect child>");
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indirect_child.cg.prop.fract = 1.0;
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indirect_child.cg.cyc.head = &indirect_child;
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}
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DBG (CALLDEBUG, printf (_("[find_call] %s: 0x%lx to 0x%lx\n"),
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parent->name, (unsigned long) p_lowpc,
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(unsigned long) p_highpc));
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for (pc = p_lowpc; pc < p_highpc; pc += 4)
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{
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op = bfd_get_32 (core_bfd, ((unsigned char *)core_text_space
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+ pc - core_text_sect->vma));
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if ((op & 0xfc000000) == 0x0c000000)
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{
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/* This is a "jal" instruction. Check that the destination
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is the address of a function. */
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DBG (CALLDEBUG,
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printf (_("[find_call] 0x%lx: jal"), (unsigned long) pc));
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offset = (op & 0x03ffffff) << 2;
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dest_pc = (pc & ~(bfd_vma) 0xfffffff) | offset;
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if (hist_check_address (dest_pc))
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{
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child = sym_lookup (&symtab, dest_pc);
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DBG (CALLDEBUG,
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printf (" 0x%lx\t; name=%s, addr=0x%lx",
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(unsigned long) dest_pc, child->name,
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(unsigned long) child->addr));
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if (child->addr == dest_pc)
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{
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DBG (CALLDEBUG, printf ("\n"));
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/* a hit: */
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arc_add (parent, child, (unsigned long) 0);
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continue;
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}
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}
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/* Something funny going on. */
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DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
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}
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else if ((op & 0xfc00f83f) == 0x0000f809)
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{
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/* This is a "jalr" instruction (indirect call). */
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DBG (CALLDEBUG,
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printf (_("[find_call] 0x%lx: jalr\n"), (unsigned long) pc));
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arc_add (parent, &indirect_child, (unsigned long) 0);
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}
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}
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}
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